RECENT ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax benefit	$ 2,239	$ (197)	$ 4,056	$ (205)
Income tax benefit recognized as an operating activity			0	(565)
Income tax expense recognized as a financing activity			0	(565)
Non-current deferred income tax liabilities	11,765		11,765		$ 9,513
ASU 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax benefit	(200)		(100)
Income tax benefit recognized as an operating activity			100
Income tax expense recognized as a financing activity			600	$ 200
ASU 2015-17 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Non-current deferred income tax liabilities	$ 9,500		$ 9,500